I've been using this $10 lightbox an awful lot.
This is simply a white plastic box with some very white LED lights and two foam backdrops. There is nothing to it. You can fold it up to the size of a legal pad if you want to put it away, or take it someplace.
I'm getting lovely photos using just my iPhone 7+. Imagine if I tried any of the tens of cameras I have laying around the house? Probably not much different.